AUDI A8 2000 D2 / 1.G 01V Transmission Electrical Testing Owner's Guide

21 + 54
22 + 54
infinite
1)

1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Permissible tolerance: 0.1 K 3) Pin 28 at the control module is vacant for vehicles with 10-pin connector of multi-function switch -F125-.
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01-293

Resistance measurement: switch multimeter to 2 M measuring range
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
21 A) 41 + 28
3)
41 + 34
41 + 55
41 + 26 Wiring to ECM (throttle
signal)
Ignition switched
off ECM
disconnected infinite
1)
- Check wiring per wiring
diagram.

41 + xx
2)

less than 1.5


1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Corresponding terminal assignment at Engine Control Module (ECM)

Electrical wiring diagrams Troubleshooting & Component Locations A) Signal is transmitted to Transmission Control Module (TCM) via the Engine Control Module (ECM). Test is only for vehicles
without CAN-Bus

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Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 00; Code letters, enginer/transmission allocation, ratios,
equipment

3) Pin 28 at the control module is vacant for vehicles with 10-pin connector of multi-function switch -F125-.
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01-294

Resistance measurement: switch multimeter to 2 M measuring range
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
22 A) 35 + 28
1)
35 + 34
35 + 55
35 + 26 Wiring to ECM (fuel
consumption/load signal)
Ignition
switched off
- ECM
disconnected more than
40 K
- Check wiring per wiring diagram.
- Disconnect connections to other
components which also receive this
signal and repeat measurement.

35 + xx
2)
less than 1.5


- Check these components for short
circuit if necessary (e.g. on-board
computer).
Change
measuring range
to 20 V Measure
Voltage Repair Manual, Electrical Equipment, Repair Group 01


35 + 34
35 + 28
1)
Ignition
switched on
- ECM
disconnected Approx. 5 V
1) Pin 28 at the control module is vacant for vehicles with 10-pin connector of multi-function switch -F125-.
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2) Corresponding terminals at Engine Control Module (ECM).

Electrical Wiring Diagrams & Component Locations A) Signal is transmitted to Transmission Control Module (TCM) via the Engine Control Module (ECM). Test is only for vehicles
without CAN-Bus

Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 00; Code letters, engine and transmission allocation, ratios, equipment

Pa
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01-295

Resistance measurement: switch multimeter to 2 M measuring range
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
23 A) 40 + 28
3)
40 + 34 Wiring to ECM (engine
RPM signal)
Ignition
switched off
- ECM
disconnected 15 - 80 K
- Check wiring per wiring diagram.
- Check on-board computer.

40 + xx
2)
less than 1.5

Repair Manual, Electrical
Equipment, Repair Group 01

24 A) 20 + 28
3)
20 + 34
20 + 55
20 + 26 Wiring to ECM (torque
reduction)
Ignition
switched off
- ECM
disconnected infinite
1)
- Check wiring per wiring diagram.

20 + xx
2)
less than 1.5


1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Corresponding terminal assignment at Engine Control Module (ECM).
Pa
ge 36 of 66 Electrical testin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.16

Electrical Wiring Diagrams & Component Locations binder A) Signal is transmitted to Transmission Control Module (TCM) via the Engine Control Module (ECM). Test is only for vehicles
without CAN-Bus

Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 00; Code letters, aggregate allocation, ratios, equipment

3) Pin 28 at the control module is vacant for vehicles with 10-pin connector of multi-function switch -F125-.
Pa
ge 37 of 66 Electrical testin
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11/20/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.16

01-296

Resistance measurement: switch multimeter to 2 M measuring range
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional steps Specified
value Corrective action
25 A) 51 + 28
3)
51 + 34
51 + 55
51 + 26 Wiring to ECM (upshift/downshift
signal)
Ignition switched
off
- ECM
disconnected infinite
1)
- Check wiring per wiring
diagram.

51 + xx
2)
less than 1.5


1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Corresponding terminal assignment at Engine Control Module (ECM).

Electrical Wiring Diagrams & Component Locations A) Signal is transmitted to Transmission Control Module (TCM) via the Engine Control Module (ECM). Test is only for vehicles
without CAN-Bus

Pa
ge 38 of 66 Electrical testin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.16

Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 00; Code letters, aggregate allocation, ratios,
equipment

3) Pin 28 at the control module is vacant for vehicles with 10-pin connector of multi-function switch -F125-.
Pa
ge 39 of 66 Electrical testin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT02.01.16

01-297

Voltage measurement: switch multimeter to 20 V measuring range
Test
step VAG
1598/20sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
26 13 + 34
13 + 6 Tiptronic
switch -
F189- Ignition switched
on
- Selector lever in D
but not in tiptronic gateapprox. 10
V - Check wiring according to wiring
diagram.
Ignition switched
on
- Selector lever
tiptronic gate approx. 20
mV
Repair Manual, 5 Spd. Automatic
Transmission 01V, Repair Group 38
- Check magnet on lateral gate cover
1)
- Repair shift mechanism, if necessary
replace gate cover or circuit board with
Tiptronic switch -F189
1)
- Perform test step 29
1) The Tiptronic Switch -F189- receives its tiptronic gate recognition information or tiptronic up- and down-shift information via
the large magnet which is mounted on the lateral gate cover of the gate cover. If the switch has become detached, the gate
cover must be replaced.
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